Ngoc, MHD, Regan, B, Toth, M, Aharonovich, I & Dawes, J 2019, 'A Random Laser Based on Hybrid Fluorescent Dye and Diamond Nanoneedles', PHYSICA STATUS SOLIDI-RAPID RESEARCH LETTERS, vol. 13, no. 2.View/Download from: Publisher's site
Bray, K, Regan, B, Trycz, A, Previdi, R, Seniutinas, G, Ganesan, K, Kianinia, M, Kim, S & Aharonovich, I 2018, 'Single Crystal Diamond Membranes and Photonic Resonators Containing Germanium Vacancy Color Centers', ACS Photonics, vol. 5, no. 12, pp. 4817-4822.View/Download from: UTS OPUS or Publisher's site
Copyright © 2018 American Chemical Society. Single crystal diamond membranes that host optically active emitters are highly attractive components for integrated quantum nanophotonics. In this work we demonstrate bottom-up synthesis of single crystal diamond membranes containing germanium vacancy (GeV) color centers. We employ a lift-off technique to generate the membranes and perform chemical vapor deposition in the presence of a germanium source to realize the in situ doping. Finally, we show that these membranes are suitable for engineering of photonic resonators such as microdisk cavities with quality factors of 1500. The robust and scalable approach to engineer single crystal diamond membranes containing emerging color centers is a promising pathway for the realization of diamond integrated quantum nanophotonic circuits on a chip.
Kianinia, M, Regan, B, Tawfik, SA, Tran, TT, Ford, MJ, Aharonovich, I & Toth, M 2017, 'Robust Solid-State Quantum System Operating at 800 K', ACS Photonics, vol. 4, no. 4, pp. 768-773.View/Download from: UTS OPUS or Publisher's site
© 2017 American Chemical Society. Realization of quantum information and communications technologies requires robust, stable solid-state single-photon sources. However, most existing sources cease to function above cryogenic or room temperature due to thermal ionization or strong phonon coupling, which impedes their emissive and quantum properties. Here we present an efficient single-photon source based on a defect in a van der Waals crystal that is optically stable and operates at elevated temperatures of up to 800 K. The quantum nature of the source and the photon purity are maintained upon heating to 800 K and cooling back to room temperature. Our report of a robust high-temperature solid-state single photon source constitutes a significant step toward practical, integrated quantum technologies for real-world environments.